Device for extracting fluid from saturated material.



PATENTED DEC. 20, 1904.

W. S. MACHARG'. DEVIGE FOR EXTRAGTING FLUID PROM SATURATED MATERIAL.

APPLICATION FILED JAN. 21, 1903.

3 8EEBTSSE'EBT 1.

H1 w lvw i w 'zzzzm 5. Jam/Le W j W No. 777,796. PATENTED DEC. 20, 1904. W. S. MAGHARG. DEVICE FOR EXTRAGTING FLUID FROM SATURATED MATERIAL.

APPLICATION FILED JAN. 21, 1903.

N0 MODEL. 3 SHEETS-SHBET 2.

Nd. 777,796. PATENTED DEC. 20, 1904. W. S. MACHARG.

DEVICE FOR EXTRAOTING FLUID FROM SATURATBD MATERIAL.

APPLICATION FILED JAN. 21, 1903. N0 MODEL; 3 SHEETS-SHEET UNTTED STATES Patented December 20, 1904.

PATENT ()EEICE.

WILLIAM S. MAOHARG, OF CHICAGO, ILLINOIS.

SPECIFICATION forming part of Letters Patent No. 777,796,, dated December 20, 1904.

Application filed January 21,1903. Serial No. 139,897.

To all whom it may concern.-

Be it known that 1, WILLIAM S. MAoHARe, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in Devices for Extracting Fluid from Saturated Material, of which the following is a specification.

My invention relates to devices for extract ing fluid from saturated materials. An application of it is illustrated in the accompanying drawings, wherein Figure 1 is a side elevation of my apparatus with parts removed. Fig. 2 is a front view of the same with certain parts broken away. Fig. 3 is a plan view of certain parts of the machine. Fig. 4 is a plan view of a portion of the folder. Fig. 5 is a detail crosssection of the universal-joint device. Fig. 6 is a detail of the roller adjustment. Fig. 7 is a cross-section detail of the same. Fig. 8 is a detail of the belt-guide.

Like parts are indicated by the same letter in all figures.

A A are frame-pieces which together constitute a suitable frame for the proper support of the various parts.

B is a belt. I will describe the mechanism by reference to the parts with which this belt is successively associated.

O is a beltfolder having a flat bottom C suitably supported on the frame-pieces and having the two inwardly-folded side sections (J C. it assumes the form indicated at B, where its two edges are carried past each other, so as to give a double fold of the belt. Immediately above the folder is a receptacle (not here shown) from which leads the funnel (3*, which opens into the folder between the side sections 0 and and discharges upon the middle of the belt B. Obviously, therefore, the belt is not only folded, but is folded so as to inclose the material within it. The belt is of a material which is of such a nature as to permit the moisture to pass freely through it, and of course it can be made of any desirable material. The belt in its folded condition, which I will indicate by the letter B, now passes around the wheel D, which has the diagonal As the belt emerges fromthe folder drainage-slots D on its outer surface. This wheel D is mounted on a short shaft D which is associated, by means of the universal joint D, with the short shaft D and by means of the universal joint D with a similar shaft D which carries a similar wheel D. The shaft D is connected by the universal-joint device D with the short shaft D. The universaljoint device D is more fully illustrated in Fig. 5, where there is showna plate D mounted on a part A of the frame and carrying adjustable set-screws D l), on which rests the yoke-piece D The shafts D and D' are journaled, by means of the spherical journals D D ,in this yoke, and each of these shafts is bifurcated at its outer end and provided with setscrews and cross-pins to engage the central block D, so as to make the universal joint. The yoke D is adj ustably secured, by means of the set-screws D to their associated slots, as indicated in Fig. 3. The shaft D* has the pinion D which engages the driving-pinion D on driving-shaft D. By this means the two wheels D and D are driven simultaneously in the same direction and at the same speed. Moreover, while in the drawings they are shown as rotating on the same axis it is obvious that their relative positions may be changed by means of the adjustments and the universal joints. This may become necessary under certain conditions because of the organization of the apparatus which involves the running of the belt from one wheel to another. The belt B after passing under the wheel D encounters a compression-roller E, which is mounted in the arms E E, which are secured together on a pivot-bar E journaled in the standards E, which are mounted on the frame-pieces. The bars E E are shaped as shown in Fig. 1, each with a lower portion E*, like a scale-beam, associated with a movable weight E whereby the pressure of the roller E against the traveling belt B may be varied. Each of the bars E has a rear hook-like projection E, which receives the weight E and holds the parts in position, the roller free from the wheel and belt when such parts are in the positions indicated in dotted lines in Fig. 1. The belt B now passes around and entirely over the wheel D and then into the guide F and thence over the tension-wheel G. This tension-wheel is mounted in the sliding frame G, which is in turn supported in and mounted on the frame G which is affixed to the frame-piece A. To the forward end of the frame G is attached the rope G which runs over the idler G and on which is mounted the weight-disks G so that the tensionwheel Gr has applied to it a variable tension to keep the belt at any desired tension on the wheel D. When the belt passes over this idler tension-wheel Gr, it passes into another fixed guide, F. The tension-wheel G is inclined, as shown, and thus the direction of the belt is changed, and it now passes under the wheel D and around the same under a compression device, which is a duplicate of that previously described as associated with wheel D. The belt as it passes over the top of wheel D enters an unfolding device J which may, however, be a duplicate of the folding device in the reverse position. This obviously unfolds the belt or brings it into its original unfolded condition. This unfolding or opening of the belt takes place at the point indicated in Fig. 1, at the forward part of the unfolding device J, and the contents, being the material which was to be freed of moisture, is discharged into the receptacle J below; In order that the belt may more perfectly be cleaned, it may engage as it passes out of the unfolder a rotary brush or other scraper or cleaner J The belt is now to be guided back to the folding device 0. This is effected by the frames and group of rollers which I will now describe.

K is a frame-piece, shaped somewhat as indicated in Figs. 1 and 2, associated with a similar frame-piece, and both of these framepieces are attached to the frame proper. Mounted in these frames are rollers K, K K K", K K, and K inclined as shown, so as to guide the belt properly. The roller K is preferably mounted in slots in the frames and associated with a bail K ,-to which is secured the cord K, which runs over the idler K on the standard K and to which is at tached the weight-disks K so that by adjusting the weights a variable tension can be put upon the roller K to keep a suitable tension on the belt. It may be desirable to have these rollers adjustable, and hence I have shown in Figs. 6 and 7 an adjustable bearing. In' the frame K at the proper point is inserted a disk L, held in position by the ring L and adapted to be locked in any desired position by the set-screw L Across the middle portion of this disk is formed the slot L, in which is mounted the slide L being held in position by the flange L and the piece L This slide L is held in position by the setscrew L Thus by turning the disk to any desired position the position of the slot can be varied, and by moving the slide in the slot the other end of the roller can be adjusted.

the guides for the folded belt.

In Fig. 8 I have shown a modification of M is the fiat bottom of such a guide. N is one of a series of rollers which may be journaled in the sides M of such guide. These guides have inwardly-extending upper edges M and thus the folded belt B is held in position, carrying the material 0 from which the moisture is to be extracted.

It is obvious that what I have described is to be taken as diagrammatic in an important sense or as merely illustrative of a single means for utilizing my invention, and I do not wish to be understood as intending to limit myself to the particular form and arrangements, proportions, and shapes of the several parts. To make more evident what I mean by this suggestion, I will point out some of the obvious changes which could be made. The important characteristics of my device is still present even though the belt be carried over but one of the large wheels, and such large wheel may consist of a wheel with a fiat surface or curved surface, or it might consist of aframe with a series of rollers. The power can be applied in any desired manner to drive the belt, and any desired guiding and controlling and tension devices can be substituted for those I have shown without materially departing from my invention. The belt can be made of any desirable material, and it is possible that the material could be carried up and around a properly constructed wheel without actually folding over the edges of the belt.

In Fig. 1 I have shown in a diagrammatic manner a detail of a device for wiping or rubbing ofi the water from the outside of the belt. In many instances the belt will discharge the greatest portion of the liquid on its outside, and to facilitate the removal of this liquid I provide the sponge-like belt P, which runs over the rollers I" P P P and between the rolls I and P of a wringer. The sponge belt is tightened, so as to keep it down upon the belt B, by means of the weight P and the roller I which latter is drawn upwardly by means of the cord P", which travels over the pulley P and thence to the weight I Of course these parts can be greatly altered, and what is shown is to be taken simply as diagrammatic. A brush or some other kind of device for taking off the liquid might be substituted. The device, broadly speaking, may be considered as a liquid-remover, and the specific form shown might be described as an absorbent liquid-remover. This device may be driven by a separate power or by connection with the driving parts which drive the wheel or may be driven by friction from its engagement with the wheel. The belt may be in part of impervious material as, for example, that portion of the belt which lies next to the wheel-like structure might be impervious.

The use and operation of my invention are as follows: The material from which liquid is to be extracted can be fed into the belt, whereupon by the motion of the belt it is carried around, preferably inclosed in the folds of the belt, over a surface against which it is pressed by the tension applied to the belt, so that the liquid tends to flow from the material within the folds of the belt. liquid if pressed out through the inside of the belt passes into the diagonal grooves and may run off to any desired receptacle. It is applicable to acase in which the liquid to be extracted is the thing to be preserved or to a case where the material freed from the liquid is the thing desired or to a case where both products are valuable, and therefore any desired devices for receiving either the liquid or the more solid material can be supplied. In the particular form of machine which I have illustrated the belt is designed to travel twice over such wheels, and therefore it becomes necessary to change the direction of travel of the belt. Hence it has been necessary for me to invent certain devices for this purpose. Obviously the tension of the belt must vary according to conditions. Therefore in addition to devices for changing the direction of travel of the belt or the relative position of the parts over which it travels I have invented and supplied means for var, ing the tension of the belt at different points along the line of its travel. I have also supplied means for folding the belt and for unfolding it at the necessarypoints. The material charged with liquid is emptied upon the belt, inelosed within the folded belt, carried about the first wheel, which I will call the extracting-wheel, then carried off to an idler arranged to change its direction, and then carried about another extracting-wheel, then directed through an unfolding device which unfolds the belt and empties its contents, then carried along adirection-changing device until it again enters the folding device, after having received a new charge of material from which liquid is to be extracted. The liquid extracted may pass through the outer surface of the belt when the belt is on the extracting-wheel, and it also may pass through the inner portions of the belt which lie between the wheel and the material. It is perhaps at this latter point that most of the liquid will be extracted and will be carried away through the diagonal grooves when there is a relatively small amount of liquid in the materia I have used the words tension-extractor to indicate my belt, as the same is a device by means of which the fluid is extracted by tension and not by pressure in the ordinarysense of the latter term.

It will be observed in my device that there is what I will call a "free extraction of the fluidthat is, an extraction of the fluid at a In the form shown this point or points where pressure is applied to the belt while it is, so to speak, free or while it is in contact with one surface only and not being passed between rolls. There is therefore anextended surface of extraction as distinguished from a case where the extraction of the fluid is brought about, for example, by two opposed rolls.

I claim- 1. In a device for extracting fluid from materials the combination of a porous belt with means for applying the material thereto and a wheel-like structure about which said belt travels and a tension device to apply sufficient pressure to the belt to cause the liquid to pass through the belt.

2. In a device for extracting fluid from materials the combination of'a porous belt with means for supplying the material thereto and means for folding the belt upon such material so as to inclose it and a wheel-like structure about which said belt travels and a tension device to apply suflicient pressure to the belt to cause the liquid to pass through the belt.

3. In a device for extracting liquid from materials the combination of a porous belt with means for supplying the material thereto and a belt-folder which folds the edges of the belt over upon each other so as to inclose the material and a tension device to apply sufiicient pressure by tension to the belt so as to cause the liquid to pass through the same.

4. Inadevice for extracting liquid from materials the combination of a porous belt with means for supplying the material thereto and a belt-folder which folds the edges of the belt over upon each other so as to inclose the material and a tension device to apply suflicient pressure by tension to the belt so as to cause the liquid to pass through the belt, said tension device containing a wheel-like structure about which such belt passes.

I 5. In a device for extracting fluid from materials, the combination of a porous folded belt by which the material is carried, wheels over which it travels, said belt in a folded condition while traveling over one of said wheels, means for varying the distance between the axes of the wheels to vary the tension on the belt and thus extract the fluid in connection with the wheel over which it passes while in its folded condition.

6. In a device for extracting fluid from materials, the combination of a porous folded belt by which the material is carried, wheels over which it travels, said belt in a folded condition while traveling over one of said wheels, and means for applying tension to the belt and thus extracting the fluid in connection with the Wheel over which it passes while in its folded condition.

7. In a device for extracting fluid from materials, the combination of a porous belt by which the material is carried with a wheel over which it travels, and a liquid-take-up device,

which bears upon the belt and takes up the liquid extracted therethrough.

8. In a device for extracting fluid from materials, the combination of a porous belt by which the material is carried with awheel over which it travels, and a liquid-take-up device, which bears upon the belt and takes up the liquid extracted therethrough, said liquidtake-u p comprising a sponge-like body to bear upon the belt.

9. In a device for extracting fluid from materials, the combination of a porous folded belt by which the material is carried, and means for carrying the belt along and deflecting it from a straight line so as to tighten the exterior fold of the belt and thus extract the fluid from the material therein.

10. In a device for extractingfluid from materials, the combination of a porous folded. belt by which the material is carried, wheels over which it travels, and means for applying pressure to the material by the tension of the belt to extract the fluid therefrom through the belt.

11. In adevice for extracting fluid from materials, the combination of a belt-like body which carries the material, a series of wheellike structures over which the belt travels, a guide-roller, a guide-frame over which the belt travels, and atension device to tighten the belt and thus extract the fluid.

12. In adevice for extracting fluid from materials, the combination of a belt-like body which carries the material, a series of wheellike structures over which the belt travels, a guide-roller, a guide-frame over which the belt travels, the guide-roller inclosed within the guideframe, and a tension device to tighten the belt and thus extract the fluid.

13. In a device for extracting fluid from materials, the combination of a belt-like body which carries the material, a series of wheellikc structures over which the belt travels, a

guide-roller, a guid e-framc over which the belt travels, and a tension device for tightening the belt and thus extracting the fluid associated with the guide-frame. Y

14. In a device for extracting fluid from materials, the combination of a belt-like body which carries the material, a series of wheellike structures over which the belt travels, a guide-roller, a guide-frame over which the belt travels, and a tension device for tightening the belt and thus extracting the fluid associated with the guide-roller.

15. In a device for extracting fluid from materials, the combination of a belt-like body which carries the material, a series of wheellike structures over and around which the belt travels, a pressure device for applying pressure to the belt where it passes over the wheel without external applications to such belt whereby the fluids from the material in the belt are extracted.

16. A device for extracting fluid from materials, comprising a belt-like body to contain such materials with a wheel about which it travels so as to have an extended surface of contact therewith, and a pressure device to apply pressure to the belt at such surface of contact without engaging the outer surface of the belt.

17. A device for extracting fluid from materials comprising a belt-like body to contain such materials with a wheel about Which it travels so as to have an extended surface of contact therewith and a tension device to apply pressure to the belt along such extended surface of contact so that the extraction takes place simultaneously over all parts of an extended surface.

WILLIAM S. MAoHAR-G.

\Vitnesses:

HOMER L. KRAFT, EDWARD T. WRAY. 

